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home » api » docs » common » ref » com » sun » star » chart

Overview

Module

Use

Devguide

Index

Methods' Summary

Attributes' Summary

Methods' Details

Attributes' Details

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:: com :: sun :: star :: chart ::

interface XChartData

Description manages the data of the chart. See also XChartDocument Developers Guide Charts - Data Access

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Methods' Summary
addChartDataChangeEventListener	allows a component supporting the XChartDataChangeEventListener interface to register as listener. The component will be notified with a ChartDataChangeEvent every time the chart's data changes.
removeChartDataChangeEventListener	removes a previously registered listener.
getNotANumber
isNotANumber	checks whether the value given is equal to the indicator value for a missing value.

Methods' Details

addChartDataChangeEventListener void addChartDataChangeEventListener( [in] XChartDataChangeEventListener  aListener ); Description allows a component supporting the XChartDataChangeEventListener interface to register as listener. The component will be notified with a ChartDataChangeEvent every time the chart's data changes. Parameter aListener the component that is to be added as listener See also XChartDataChangeEventListener, ChartDataChangeEvent

removeChartDataChangeEventListener void removeChartDataChangeEventListener( [in] XChartDataChangeEventListener  aListener ); Description removes a previously registered listener. Parameter aListener the component that is to be removed

getNotANumber double getNotANumber(); Returns the value which is to be used as an indicator for a missing value in the data. In IEEE arithmetic format it is one of the NaN values, so there are no conflicts with existing numeric values.

isNotANumber boolean isNotANumber( [in] double  nNumber ); Description checks whether the value given is equal to the indicator value for a missing value. In IEEE arithmetic format it is one of the NaN values, so there are no conflicts with existing numeric values. Always use this method to check, if a value is not a number. If you compare the value returned by XChartData::getNotANumber to another double value using the = operator, you may not get the desired result! Returns true if the number given is interpreted by the chart as a missing value. Parameter nNumber the number that you want to check for validity.

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